- Consistent 120° broadband pattern control covers an extremely large area.
- Shaped mounting baffle provides the pattern control of a 300 mm (12 in) horn from a 200 mm (8 in) driver.
- Components
• 200 mm (8 in) woofer with Kevlarre inforced cone and 50 mm (2 in) voice-coil.
• 25 mm (1" exit) compression driver.
- Extraordinary clarity for speech and vocals with extended frequency response for music.
- 250 Watt power handling with very high sensitivity provides high SPL capability.
- Advanced high-slope crossover network for constant coverage and smooth, natural midrange.
- Clean, contemporary grille and optional backbox available.
Specifications
| Specification |
Details |
| Frequency Range (-10dB) |
45 Hz – 18 kHz |
| Power Rating |
IEC long-term system power rating:
250 W continuous pink noise (1000 W peak), 2 hrs
150 W continuous pink noise (600 W peak), 100 hrs |
| Sensitivity |
93 dB (1 kHz – 16 kHz) |
| Frequency Response (±3dB) |
60 Hz – 16 kHz |
| Coverage Angle |
120° conical, constant directivity |
| Directivity Factor (Q) |
7.0 (avg 1 kHz – 16 kHz) |
| Directivity Index (DI) |
8.5 dB (avg 1 kHz – 16 kHz) |
| Maximum SPL (1m) |
118 dB (124 dB peak) |
| Crossover Network |
1.9 kHz, 3rd order (18 dB/oct) high-pass plus conjugate to HF, 2nd order low-pass to LF |
| Impedance |
8 ohms |
| Dimensions (H x W x D) |
305 mm (12.0 in) diameter round baffle x depth from back of baffle of 160 mm (6.3 in) |
| Input Connectors |
Screw locking barrier strip for bare wire |
| Drivers |
LF Driver: 200 mm (8 in)
HF Driver: compression driver, 25 mm (1 in) coil |
| Color |
White |
| Safety Agency |
Suitable for use in air handling spaces per UL1480, UL2043, NFPA90 & NFPA 70 when installed with UL listed backcan such as JBL MTC-300BB8. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849. |
| Backcan |
Formed steel (wood-lined; accessory) |
| Baffle/Rim |
Metal, round, driver pre-mounted to baffle, ported |
| Ceiling Cutout Size |
310 mm (12.2 in) diameter (for MTC-300BB8 backcan) |
| Optional Accessories |
MTC-RG6/8 grille, round contoured, white
MTC-SG6/8 grille, square contoured, white
MTC-300BB8 backbox, 25 liters (1 cubic foot) |
| Plenum Usage |
Yes, with accessory backcan |
JBL Control 328C Ceiling Loudspeaker is designed for professional ceiling installations requiring high SPL capability and broad sound distribution. Its ported metal baffle supports flexible installation with optional grille and backbox accessories, making it suitable for commercial audio applications.
